We're running Exchange 2010, with a mixed bag of clients, Outlook 2003, 2007, and 2010. For the most part, everything is working fine, with the exception of one user in particular. He has Windows 7 and Outlook 2010. When he sends an email, it just sits in his outbox and never sends. If he closes Outlook with those items in his outbox, then opens outlook again, those items are gone completely but not sent. He loses whatever email he wrote that didn't send. What he has done so that he doesn't lose the email he created, is to open up a browser and go to OWA, copy and paste into a new mail massage in OWA and send it that way. There is nothing wrong with his email account, but rather his client setup may be corrupt. This is a weird one, and I have other users with same configurations who do not have this issue. He is the only one.
anyone have any ideas?